Threshold construction



1933- F. w. KAMMERER THRESHOLD CONSTRUCTION Filed Jan. 26, 1932 KI Z z j w s I I s \E gwuontoc Patented oer. 3, 1933 v FUNITED *{s ArEs PATENT. OFFICE];

. 7 1,929,31 M H '5 1 7 THRESHOLD ooNsrRUo'rron t I Q I 7 Fred W. Kainmerer, New Yorlr,

A plication Januaryzs, 1932. "seri rno ssssss V 8 Claims; (01. 20-64) .7 ,This invention relates to a; metallic threshold.

More particularly it relates to a composite lower door jamb and sill construction. i

It is a primary object of the inventionto provide a threshold Construction having a door sill section, a door jamb section, and a sealing flange for cooperationwith weather stripping of novel form carried by the door..

It is-a further object to provide araisedhorido zontal jamb section in combinationwith a sill section, the width of the jamb sectionbeing reference characters refer to like parts throughoutboth views; I

Figure 1 is a verticalsectional View of anembodiment of the invention adapted for use with outwardly swinging French doors and inwardly swinging screen doors, and 7 a Figure 2 is a vertical sectional view of a threshold embodying the invention, but showing a modified method of mounting the same on the floor:

1 An outwardly swinging door is represented by reference character 10, and this may be a door of the French type or any other preferred kind. A screen door 11 is mounted to ,swing inwardly and is spaced from the door by the jamb section 12 of the threshold of my invention.

This threshold comprises a raisedhorizontal though slightly inclined, sill section 13, and a vertical connecting section 14 extendingv between the two.

5 are made of brass or other suitable metal. a The connecting section 14- serves to support one edge of the jamb section in;a raised plane above the floor andabove the sill section. A flange 14 projects horizontally from the connecting section the sill 13 andfiange 15, but a rearwardlyex-- tending continuation 16 thereof projects in the jamb section 12, a substantially horizontal,

. lying on the, floor. The three sections are preferably integral, and

.over a portion of the sill 13 in spaced relation same directionjand overlies a portion of: the flange'l5 in spaced relation thereto. The vertical edge 17 of this continuation constitutes an abut ment which contacts with a portion 18 of the door 10, and-limits the closing movement thereof. The spacebetween the continuation 16 and the flange 15 takes-the formv of a groove 19, and is adapted to receive dust, dirt and othersmall objects so that the closing movement of the door will not be interfered with. V I A weather strip 20 hasa fiatedge, portion 21 securedto the bottom'surface of the door-2; This strip is formed into an S-section and the major portion thereof is disposed in a rabbeted edge 23. of door 16; A groove 24' formed by one bend of the stripis adaptedtojreceive the flange 15 in weather-tight, relation,and the rib 25 formed by the other bend of the strip contacts the undersurface of the flange, and is received in a groove 19a which, in a similar manner to groove 19, may receive dust, dirt,.and the like. Theparts are so proportioned that .the abutment surface 1'7 ofthe jamb contacts with the portion 18 of the door and'receives all shocks of closing the door, so that said shocks are not transmitted to v the 8 0 weather-strippingthrough the flange 15.

The arrangement of parts which accomplish this function is an important advantage of my invention, because it relieves the weather-stripping of strain, and enables it to outlast weather stripping used in conventional constructions.

In the embodiment of the invention shown in Figure 1 the inner edge .of theijambsection of the threshold is supported by a second sill member 30. Ifhis member comprises; a vertical supporting section 3-1 disposed under the jamb '12 and. spaced a slight;distance inwardly from theedge 1 32 thereof. It further comprises a sill'portion 33 which underlies the screen door 11. .The sill portion'is raised so asrto space the lower edge-of the .95

screen door above the fioora distance sufiicient 4 to avoid contact of the door with rugs or carpets The jamb section 12 is preferably made of suffioient width to fit the widest conventional in-.

stallation. It can thenbe cut down on'the job to fit the particular installation athand. Consequently, its width may be variedto correspond to the width of the vertical jambs in the door frame with which it is used. The second sillmember'30 can be placed under the member. 12 in any desired adjustediposition and the several parts may be secured to the floor by wood screws 35 or the lik'e.- Thesill member 30 should be so positioned with respect-to the jamb member that a grooveis ber 37.

provided between the lower surface of the jamb member at the edge and the sill portion 33; This groove is adapted to receive dirt and other small objects which might interfere with the closing of the screen door. v

The construction shown in Figure 2 is similar to that shown in Figure 1 and differs therefrom only in the manner in which the threshold member is mounted on the floor. This type of installation is desirable in constructions where a rough flooring 38 supports a'finish flooring 36, and the edge of the latter terminates adjacent the closing line of the door. The use of a second sill member is unnecessary in this type of installation. The jamb section 12 lies directly upon the finish flooring 36, and the connecting section 14 is positioned adjacent the vertical edge of said flooring.- The sill section 13a is somewhat longer in this type of construction than in the one described above;

and rests upon the frame or permanent sill memcomprising, a raised substantially horizontal bot tom-jamb section, a sill section, and a vertically disposed connected section therebetween, said jamb and sill sections projecting from said connecting section in opposite directions, respectively,'a substantially horizontal flange on'said connecting section projecting over a portion of sill section in spaced relation thereto, said jamb sectionhaving a rearwardlyprojecting extension overlying a portion of said flange inspaced relation thereto and constituting an abutment for said door.- I I I 2. A metallic threshold for swinging doors comprising a raised substantially horizontal bottom jamb section, a sill section, and a vertically disposed connecting section therebetween, said jamb and sill sections projecting from said connecting section in opposite directions respectively, a substantially horizontal flange on said connecting section projecting over a portion of said sill section in spaced relation thereto and forming therebetween a sealing groove for weather strip, said jamb section having a rearwardlyextending continuation spaced from and projecting overa portion of said flange into abutting relation to said door, thespace between said flange and said continuation constituting a dust receiving groove. 7

3. The combination with a threshold comprising a raised substantially horizontal bottom section, a sill section, and a vertically disposed connecting section therebetween, said connecting section having a substantially horizontally projecting flange overlying a portion of said sill section in spaced relationthereto and forming therebetweenasealing groove for weather strip, said 'jamb section having an abutment edge above the plane of said flange; of a door having a rabbeted lower edge and a'weather strip in said rabbet adapted to receive. said flange when said door is closed, said weather strip having a rib adapted to project into said sealing groove below said flange, said abutment 'edge being adapted to limit the closing movetom jamb section, a sill section, and a vertically disposed connecting section therebetween, said connecting section having a substantially horizontally projecting flange overlying a portion of said sill section in spaced relation thereto, said jamb section having an abutment edge above the plane of said flange; of a door having a rabbeted lower edge and a weather strip secured to the bottom face of said door and'having a free and provided with a sealing groove in said rabbet, .said groove being adapted to receive said flange when said door is closed, said abutment edge being adapted to limit the closing movement of said door by contact therewith above said rabbeted lower edge.

5. A threshold comprising a raised substantially horizontal bottom jamb section, a door sill section at one side thereof, integral there with, and connected thereto by a vertically disposed connecting section, in combination with a second door sill member at the opposite side of said jamb section, said member comprising a sill portion and an upright supporting portion,

the adjacent edge of said jamb section to support the same, the width'of said jamb section and theposition of said second door sill member being variable to correspond to the width of the door jamb with which said threshold is used.

-6.-A threshold comprising a raisedsubstantially horizontalbottom jamb section, a 'doorsill section at one side thereof, integral therewith "and connected thereto by a vertically disposed connectingsection, an edge of said jamb sec tion adjacent said sill' section constituting an abutment for a door swung above said sill section, in combination with a second door-sill member at'the opposite side of'said jamb from said first mentioned sill section, said member comprising a sill portion and an upright supporting portion, said supporting portion being disposed beneath the opposite edge of said jamb section, said edge constituting an abutment-for a door swung above said second sill member, the width of said jamb section and the position of said second sill member being variable to correspond to the width of the vertical jambs 'in the door frame with which said threshhold is '7. A eatherstrip construction comprising in combination a threshold having a substantially horizontal raised jamb section; a sill section, a vertically disposed connecting section therebetweemand a flange on saidconnecting section projecting therefrom over a portion of said sill in spaced relation thereto and forming therebetween a sealing groove for weather strip; and a door having a rabbeted lower edge adjacent said threshold, a weather strip having a flat edge portion secured'to' the bottom face of saiddoor and having a sealing portion dis posed in said rabbeted portion of said door, said sealing portion having a groove adapted to receive said 'flange 'in'weather-tight'relation, and a rib adapted to project into the groove between said flange and said sill and to underlie said flange in weather-tight relation.

"8. A weather strip construction comprising in "combination, a threshold having a substantially horizontal raised jamb section, a sill section, a1

said supporting'portion being disposed beneath secured to the bottom face of said door and extending in the plane thereof, the remainder of said strip being disposed in said rabbeted portion and being adapted to receive said flange in weather-tight relation. a

FRED W. KAMMERER. 

